On Tue, 27 Jun 2017 21:08:48 +0200 (CEST) Wido den Hollander wrote: > > Op 27 juni 2017 om 20:56 schreef German Anders <ganders@xxxxxxxxxxxx>: > > > > > > Hi Cephers, > > > > I want to upgrade an existing cluster (version 0.82), and I would like > > to know if there's any recommended upgrade-path and also the recommended > > target version. > > > > I would go to Hammer (0.94) first, make sure the cluster is updated to the latest 0.94.11 version and then proceed to Jewel. > AFAICT there is only 0.94.10, which still has the (potentially crippling with large or underpowered clusters) CRC error during upgrades. A 0.94.11 with this fixed would have been really nice before Jewel and it's not too late for Luminous... > Make sure all clients are up to date as well and you are using the latest CRUSH tunables before you proceed to Jewel. > That bit with the clients is probably going to be lot more painful, complex or at the very least prolonged than it sounds. Every last client (i.e. VM) needs to be restarted with the new librbd bits (or the server with a new enough kernel in case or krbd) before the actual Ceph cluster can be upgraded and those CRUSH tunables set. Christian > Wido > > > Thanks in advance, > > > > *German* > > _______________________________________________ > > ceph-users mailing list > > ceph-users@xxxxxxxxxxxxxx > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Christian Balzer Network/Systems Engineer chibi@xxxxxxx Rakuten Communications _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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